No, she’s got metabolism confused with appetite, and here’s the unscientific part:
“Drink a half of a liter of water each day to increase your metabolism….”
That’s going to be very difficult because water has zero calories….
Next, she opines “Walk 8700 steps daily….” Or nearly twice as far as the Heart Association 5000 steps daily. 
If you put those two recommendations together you get one colossally bad idea — it’s called dehydration.
Fact — My fitness band recommends a daily water intake of 64 ounces which is four times her recommendation. Be wary of so-called “experts” who are products of our system of “outcome-based education….” Two plus two is never five, no matter how good you might feel about it.